diy projects
Negotiator II: A Business-Card USB-C PD Bench Power Supply
Negotiator II turns any USB-C PD charger into an adjustable 5 V to 48 V bench supply on a 2 mm thick card. Here…
diy projects
This NFC Business Card Lights Its LEDs With Borrowed Phone Power
Kevin Tang's PCB business card lights up with no battery on board, pulling about 5 mA from the phone's own 13.56 MHz NFC field.
diy projects
Ben Eater Builds a Breadboard Clock Timed by 60 Hz Wall Power
Ben Eater skips the crystal oscillator and pulls his breadboard clock's one-second heartbeat straight from the 60 Hz AC grid. Here's how the circuit…
diy projects
Build a 2 Hz to 33.5 MHz Signal Generator on One AVR EB Chip
One AVR chip, a keypad, and an OLED become a bench signal generator that covers 2 Hz to 33.5 MHz in 2 Hz steps…
company life
Mini Vlog: 35 Raspberry Pi 3 B+ Kits for Elizabeth Seton School - Packed at Circuitrocks, Delivered for STEM
We packed and delivered 35 Raspberry Pi 3 B+ starter kits to Elizabeth Seton School - BF Resort, Las Piñas to jump-start their STEM…
partnerships
Circuitrocks × CvSU Jr. IECEP: Official Campus Partnership to Power Student Projects
We’re excited to partner with CvSU Jr. IECEP to support ECE students with parts, project resources, and joint initiatives. Watch out for student-friendly perks,…